| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 7 |
2%
|
| 2 | Every few weeks | 31 |
8.7%
|
| 3 | Every few months | 113 |
31.7%
|
| 4 | Not at all | 107 |
30%
|
| Sysmiss | 99 |
27.7%
|